Cái Răng is an urban district located in Cần Thơ within the Mekong Delta region of Vietnam. It was officially established on January 2, 2004, by Decree No. 05/2004/ND-CP. The district covers a total area of 63 km².
As of 2019, the population of Cái Răng was recorded at 105,393 residents. Geographically, the district is bordered by Vĩnh Long province to the east, Phong Điền district to the west, Hậu Giang province to the south, and Ninh Kieu district to the northwest.